Draft: Updating the global monitoring script to be used for Online/ART

Following the jira ticket ATLASRECTS-7551. The global monitoring script is updated to be run for onine and offline ART test. This script is tested and works perfectly in both ATLAS and TEST partition. it can be run offline in lxplus for ART tests as well for .

-- Offline on lxplus for ART test :

--- python GlobalMonitoring.py IOVDb.GlobalTag="conditions_Tag" --offline --filesInput [path_to_RAW_data_file] --evtMax [Max_number_events]

--- note: if the filesInput is not provided a defaultTestFile will be used.

--- note: if the evtMax is not provided, the default is 100.

-- Online is the default: python GlobalMonitoring.py"

@smwang @fwinkl @ebergeas @sawyer @cdelitzs